Dr. Song Gao

Assistant Professor

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(Click to enlarge photo)

College of Engineering
Department of Civil & Environmental Engineering
University of Massachusetts
214C Marston Hall
130 Natural Resources Road
Amherst, MA 01003-0724
Phone: (413)545-2688
Fax: (413)545-9569

E-mail:sgao@engin.umass.edu

 

Personal Academic Webpage

Full Curriculum Vitae

Research Interests
  • Methodologies
    Optimization in stochastic networks
    Econometric models of (adaptive) travel behavior
    Traffic models of uncertain networks with traveler information
  • Applications
    Intelligent transportation systems
    Transportation planning
    Congestion pricing and emission pricing
    Freight transportation
Education
 
Ph.D. in Transportation, Massachusetts Institute of Technology, 2005.
M.S. in Transportation, Massachusetts Institute of Technology, 2002.
B.S. in Civil Engineering, summa cum laude, Tsinghua University, China, 1999.
 
Experience
  • Assistant Professor, University of Massachusetts Amherst, 2007-present
  • Transportation Engineer, Caliper Corporation, Newton MA, 2004-2007
Classes Taught
 
CEE Engin 509 Transportation System Analysis

CE-ENGIN 270 Sys Analysis & Econ Civil Engin

 
Recent Papers Published
 

Paciulli, M., J. Collura and S. Gao. Developing an Evaluation Approach to Assess Large Scale ITS Infrastructure Improvements: I-91 Project in Massachusetts. "Transportation Research Record", vol 2243, 2011, Pages 81-88.

Gao, S.. Modeling Strategic Route Choice and Real-Time Information Impacts in Stochastic and Time-Dependent Networks. "IEEE Transactionn on Intelligent Transportation Systems", vol 13, number 3, 2012, Pages 1298-1311.

Ben-Akiva, M. E., Gao, S., Wei, Z. and Wen, Y.. A Dynamic Traffic Assignment Model for Highly Congested Urban Networks. "Transportation Research Part C", vol 24, 2012, Pages 62-82.

Hu, X., Gao, S., Chiu, Y. and Lin, D.. Modeling Routing Behavior for Vacant Taxi Cabs in Urban Traffic Netwroks. "Transportation Research Record", vol 2284, 2012, Pages 81-88.

Gao, S. and Huang, H.. Real-Time Information for Optimal Adaptive Routing in Stochastic Time- Dependent Networks. "Transportation Research Part C", vol 21, number 1, 2012, Pages 196-213.

Lu, X., Gao, S. and Ben-Elia, E.. Information Impacts on Route Choice and Learning Behavior in a Congested Network: An Experimental Approach. "Transportation Research Record", vol 2243, 2011, Pages 89-98.

Huang, H. and S. Gao. Optimal Paths in Dynamic Networks with Dependent Random Link Travel Times. "Transportation Research Part B", vol 46, number 5, 2012, Pages 579-598.

Hu, X.*, Gao, S., Chiu, Y. and Lin, D. (Accepted). Modeling Routing Behavior for Vacant

Taxi Cabs in Urban Traffic Networks. Transportation Research Record. Accepted Feb. 10,
2012.
 
Lu, X.*, Gao, S., Ben-Elia, E. and Pothering, R.* (Accepted). Travelers’ Day-to-Day Route
Choice Behavior with Real-Time Information in a Congested Risky Network. Mathematical
Population Studies. Accepted Jan. 18, 2012.
 
Razo, M.* and Gao, S. (Forthcoming). A Rank-Dependent Expected Utility Model for
Strategic Route Choice with Stated Preference Data. Transportation Research Part C.
doi:10.1016/j.trc.2011.08.009
 
Gao, S. (Forthcoming). Modeling Strategic Route Choice and Real-Time Information Impacts
in Stochastic and Time-Dependent Networks. IEEE Transactions on Intelligent Transportation
Systems. doi:10.1109/TITS.2012.2187197
 
Huang, H.* and Gao, S. (2012). Optimal Paths in Dynamic Networks with Dependent Random
Link Travel Times. Transportation Research Part B 46(5):579-598.
doi:10.1016/j.trb.2012.01.005
 
Ben-Akiva, M. E., Gao, S., Wei, Z.* and Wen, Y. (2012). A Dynamic Traffic Assignment
Model for Highly Congested Urban Networks. Transportation Research Part C 24:62-82.
doi:10.1016/j.trc.2012.02.006
 
Gao, S. and Huang, H.* (2012). Real-Time Traveler Information for Optimal Adaptive Routing
in Stochastic Time-Dependent Networks. Transportation Research Part C 21(1):196-213.
doi:10.1016/j.trc.2011.09.007
 
Gao, S., Frejinger, E. and Ben-Akiva, M. E. (2011). Cognitive Cost in Route Choice Models.
Transportation Research Part A 45(9):916-926. doi:10.1016/j.tra.2011.04.008
 
Lu, X.*, Gao, S. and Ben-Elia, E. (2011). Information Impacts on Route Choice and Learning
Behavior in a Congested Network: An Experimental Approach. Transportation Research
Record 2243:89-98. doi:10.3141/2243-11
 
Paciulli, M.*, Collura, J. and Gao, S.. (2011). Developing an Evaluation Approach to Assess
Large Scale ITS Infrastructure Improvements: I-91 Project in Massachusetts. Transportation
Research Record 2243:81-88. doi:10.3141/2243-10
 
Andrews, S.*, Wang*, H., Ni, D., Gao, S. and Collura, J. (2010). Development and Implementation
of an Adapted Evacuation Planning Methodology in the Framework of Emergency
Management and Disaster Response: A Case Study Using TranCAD. Journal of Transportation
Safety and Security 2(4):352-368. doi:10.1080/19439962.2010.517743
 
Razo, M.* and Gao, S. (2010). Strategic Thinking and Risk Attitudes in Route Choice: A
Stated Preference Approach. Transportation Research Record 2156:28-35. doi:10.3141/2156-04
 
Gao, S., Frejinger, E. and Ben-Akiva, M. E. (2010). Adaptive Route Choices in Risky Traffic
Networks: A Prospect Theory Approach. Transportation Research Part C 18(5):727-740.
doi:10.1016/j.trc.2009.08.001
 
Recent Conference Proceedings
 
Lu, X.*, Gao, S., Ben-Elia, E. and Pothering, R.* Information Impacts on Travelers’ Route
Choice Behavior in a Risky, Congested Network. The 91st Annual Meeting of Transportation
Research Board. Washington, DC, Jan. 22-26, 2012.
 
Hu, X.*, Gao, S., Chiu, Y. and Lin, D. Modeling Routing Behavior for Vacant Taxi Cabs
in Urban Traffic Networks. The 91st Annual Meeting of Transportation Research Board.
Washington, DC, Jan. 22-26, 2012.
 
Huang, H.* and Gao, S. Trajectory-Adaptive Routing in Dynamic Networks with Dependent
Random Link Travel Times. The 91st Annual Meeting of Transportation Research Board.
Washington, DC, Jan. 22-26, 2012.
 
Tian, H.*, Gao, S., Fisher, D. L. and Post, B.* A Mixed-Logit Latent-Class Model of Strategic
Route Choice Behavior with Real-time Information. The 91st Annual Meeting of Transportation
Research Board. Washington, DC, Jan. 22-26, 2012.
 
Plotnikov, M.*, Collura, J., Burleson, W. and Gao, S. Evaluating Impacts of Placing Tolls
on Interstate Highways. The 91st Annual Meeting of Transportation Research Board Compendium.
Washington, DC, Jan. 22-26, 2012.
 
Lu, X.*, Gao, S., Ben-Elia, E. and Pothering, R.* Information Impacts on Travelers’ Route
Choice Behavior in a Congested Risky Network. The 16th International Conference of Hong
Kong Society for Transportation Studies, Dec. 17-20, 2011.
 
Lu, X.*, Gao, S., Ben-Elia, E. and Pothering, R.* Information Impacts on Travelers’ Route
Choice Behavior in a Congested Risky Network. The Annual Meeting of the Institute for
Operations Research and Management Science, Charlotte, NC, Nov. 13-18, 2011.
 
Hu, X.*, Gao, S., Chiu, Y. and Lin, D. A Routing Behavior Model for Vacant Taxi Cabs in
Urban Traffic Networks. The Annual Meeting of the Institute for Operations Research and
Management Science, Charlotte, NC, Nov. 13-18, 2011.
 
Huang, H.* and Gao, S. Trajectory-Adaptive Routing in Dynamic Networks with Dependent
Random Link Travel Times. The Annual Meeting of the Institute for Operations Research
and Management Science, Charlotte, NC, Nov. 13-18, 2011.
 
Tian, H.*, Gao, S., Fisher, D. L. and Post, B.*Modeling Route Choice Behavior in a Driving
Simulator with Real-Time Information. The Annual Meeting of the Institute for Operations
Research and Management Science, Charlotte, NC, Nov. 13-18, 2011.
 
Gao, S., Frejinger, E. and Ben-Akiva, M. Cognitive Cost in Route Choice with Real-Time
Information: An Exploratory Analysis. The 19th International Symposium on Transportation
and Traffic Theory (ISTTT19). Berkeley, CA, July 18-20, 2011.
 
Lu, X.*, Gao, S. and Ben-Elia, E. Information Impacts on Route Choice and Learning in
a Congested Network: An Experimental Approach. The 19th Triennial Conference of the
International Federation of Operational Research Societies. Melbourne, Australia, July 10-
15, 2011.
Lu, X.*, Gao, S. and Ben-Elia, E. Information Impacts on Route Choice and Learning Behavior
in a Congested Network: An Experimental Approach. The 90th Annual Meeting of
Transportation Research Board. Washington, DC, Jan. 23-27, 2011.
 
Tian, H.*, Gao. S., Fisher, D. L. and Post, B.* Route Choice Behavior in a Driving Simulator
with Real-Time Information. The 90th Annual Meeting of Transportation Research Board.
Washington, DC, Jan. 23-27, 2011.
 
Paciulli, M.*, Collura, J. and Gao, S.. Developing an Evaluation Approach to Assess Large
Scale ITS Infrastructure Improvements: I-91 Project in Massachusetts. The 90th Annual
Meeting of Transportation Research Board. Washington, DC, Jan. 23-27, 2011.
 
Ben-Akiva, M. E., Gao, S., Wei, Z. and Wen, Y. A Dynamic Traffic Assignment Model for
Highly Congested Urban Networks. The 90th Annual Meeting of Transportation Research
Board. Washington, DC, Jan. 23-27, 2011.
 
Huang, H. and Gao, S.. Optimal Paths in Dynamic Networks with Dependent Random Link
Travel Times. The 90th Annual Meeting of Transportation Research Board. Washington,
DC, Jan. 23-27, 2011.
 
Recent Research Contracts Funded
 

Trajectory-Adaptive Route Choice Models: Specification, Choice Set Generation and Estimation. New England University Transportation Center. Gao, S. and Balasubramanian, H. J. 9/1/2010 3/31/2013  $79,302.

Agent-Based Approach for Integrated Driver and Traveler Behavior Modeling: Theory, Methodology, and Application to Transportation Management and Investment Planning. Federal Highway Administration. Zhang, L. and Gao, S. 4/1/2011 - 3/31/2014 $650,000.

EU-US ATLANTIS Program: Policy Analysis for Complex Transport Systems. US Department of Education. Polydoropoulou, A., M. Ben-Akiva, R. Macario, E. Van de Voorde and S. Gao 9/1/2010 - 8/31/ $77,000.

Evaluating Realtime Information Benefits for the Pioneer Valley Region. University of Massachusetts University Transportation Center. Gao, S. 10/1/2010 2- /28/2013 $79,706.

Route Choice in a Risky Traffic Network: Econometric vs. Process  Modeling Paradigms. University of  Massachusetts University Transportation Center. Gao, S. 10/1/2011 - 2/28/2013 $49,750.

Active Evaluation of the Traveler Information Service Provided by the Regional Traveler Information

Center. Massachusetts Department of Transportation. $37,136.

Gao, S. (PI) and Patil, G. Commute Rideshare for Sustainable Transportation in Northern

Rural Communities: Understanding the Market and Designing Attractive Programs. New
England Transportation Consortium. $150,000. Agreement under way.
 
Gao, S. (PI). Route Choice in a Risky Traffic Network: Econometric vs. Process Modeling
Paradigms. US Department of Transportation through University of Massachusetts University
Transportation Center. Oct. 2011 - Sep. 2012. $49,749.
 
Zhang, L. and Gao, S. (co-PI). Agent-based Approach for Integrated Driver and Traveler
Behavior Modeling: Theory, Methodology, and Applications to Transportation Management
and Investment Planning. Exploratory Advanced Research Program (EARP) of Federal Highway
Administration (FHWA). Apr. 2011 - Mar. 2014. $650,000.
 
Gao, S. (PI). Evaluating Real-time Traveler Information Benefits for the Pioneer Valley Region.
US Department of Transportation through University of Massachusetts University
Transportation Center. Oct. 2010 - Mar. 2012. $79,037.
 
McDonald, A., Garcia, R., Gao, S. (co-PI) and Chan, K. NOx No More: Connecting Travel
Logs with Simulation, Gaming, and Environmental Education. HASTAC/MacArthur Foundation.
Sep. 2010 - Aug. 2011. $155,000.
 
Polydoropoulou, A., Ben-Akiva, M. E., Macario, R., Van de Voorde, E. and Gao, S. (co-
PI). EU-US ATLANTIS Program: Policy Analysis for Complex Transport Systems. US
Department of Education. Sep. 2010 - Sep. 2012. $77,000.
 
Gao, S. (PI) and Balasubrumanian, H. Trajectory-Adaptive Route Choice Models: Specification,
Choice Set Generation, and Estimation. US Department of Transportation through New
England University Transportation Center. Sep. 2010 - Aug. 2012. $79,302.
 
Gao, S. (PI). Characterizing Traffic under Uncertain Disruptions: An Experimental Approach.
US Department of Transportation through New England University Transportation
Center. Nov. 2009 - Aug. 2011. $79,163.
 
Gao, S. (PI). Stochastic Dependencies of Traffic Networks in Adaptive Routing with Real-
Time Information. US Department of Transportation through University of Massachusetts
University Transportation Center. Oct. 2009 - Mar. 2011. $62,445.
 
Gao, S. (PI) and Fisher, D. L. Adaptive Route Choice Models with Real-Time Information.
US Department of Transportation through New England University Transportation Center.
Apr. 2009 - Aug. 2011. $74,378.
 
Collura, J., Gao, S. (co-PI) and Ni, D. Evacuation Planning. Berkshire Regional Planning
Commission, Franklin Regional Council of Governments and the Pioneer Valley Planning
Commission. Sep. 2008 - Jun. 2009. $100,000.
 
Gao, S. (PI). Value of Information for Optimal Adaptive Routing in Stochastic Time-Dependent
Traffic Networks: Algorithms and Computational Tools. US Department of Transportation
through University
 
Recent Honors and Awards
 
• Member of the Winning Team, MacArthur Digital Media and Learning Competition, 2010.
(Press Release)
• Honorable Mention (Second Place), Dissertation Prize Competition of the Transportation Science
and Logistics (TSL) Society, Institute for Operations Research andManagement Science
(INFORMS), 2005
• MIT United Parcel Service (UPS) Doctoral Fellowship, 2001-2002
• MIT Presidential Fellowship, 1999-2000